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134555 (1999 RN169)
Classification: Main-belt Asteroid          SPK-ID: 2134555
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2158618855138052 3.1211e-08  
a 2.351335232843811 9.7871e-09 au
q 1.843771576007104 7.3363e-08 au
i 4.279853120535313 4.8915e-06 deg
node 312.7299431999361 5.2733e-05 deg
peri 100.5246679469862 5.4461e-05 deg
M 282.4938241723129 1.379e-05 deg
tp 2459484.033293413747
(2021-Sep-26.53329341)
5.1436e-05 TDB
period 1316.952933607212
3.61
8.2224e-06
2.251e-08
d
yr
n .2733582885258768 1.7067e-09 deg/d
Q 2.858898889680519 1.19e-08 au
  Orbit Determination Parameters
   # obs. used (total)      817  
   data-arc span      7224 days (19.78 yr)  
   first obs. used      1999-08-22  
   last obs. used      2019-06-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50354  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:53  

Additional Information
 Earth MOID = .860013 au 
 Jupiter MOID = 2.52447 au 
 T_jup = 3.522 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO320488  
diameter diameter 3.937 km 0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 122.389 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.060   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134555 (1999 RN169)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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